Search Results for: ecosystems

Through Smoke and Fire, NASA Searches for Answers

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For years, NASA has used the vantage point of space, combined with airborne and ground-based field campaigns, to decipher the impact of fires—from first spark to final puff of smoldering smoke— and help other agencies protect life and property.

But the effects of fires linger long after they’re extinguished: They can upend ecosystems, influence climate and disrupt communities. While NASA keeps an eye on today’s fires, it also tackles the big-picture questions that help fire managers plan for the future.

This summer, NASA is embarking on several field campaigns across the world to investigate longstanding questions surrounding fire and smoke. Aircraft will fly through smoke and clouds to improve air quality, weather and climate forecasting, and investigate fire-burned forests to capture ecosystem changes that have global impact.

Music: Motion Blur by Sam Dodson, End of the Quarter by Austin Jordan
Credit: NASA’s Goddard Space Flight Center/LK Ward

How Sea Cucumbers Can Help the Ocean

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Sea cucumbers are a prized aphrodisiac in China. But like many coastal species they have been chronically overfished. One remote community in Madagascar has started a pioneering coastal-farming project with astonishing results.

The Ocean is facing environmental catastrophe. Overfishing is a ticking time bomb for both planet and people.

In one remote coastal village the locals appear to have found an unlikely solution. A strange little sea creature that’s a popular aphrodisiac and just possibly a fisherman’s salvation. In the first business of its kind in Madagascar, Dadiny has recently started farming these animals. Sea cucumbers.

Sea cucumbers are under threat. Growing them in designated and contained areas is helping to protect both this important species and other kinds of marine life here in the south-west of Madagascar. Because of the part sea cucumbers play in cleaning up the seabed it’s believed that they help maintain stocks of other marine life.

In this region, not just sea cucumbers, but all kinds of marine life have suffered from chronic overfishing. When marine conservationist Alasdair Harris first visited Madagascar in 2001 he was shocked to discover the extent of this devastation. To reduce this overfishing the NGO that Alasdair runs helped train 700 local fishermen and women in small-scale sustainable sea-cucumber farming. It’s meant many locals are no longer using the techniques that contributed to overfishing in this region. Alasdair’s research suggests fish stocks have doubled here since 2006. But it is not marine conservation that has fundamentally persuaded the local population to buy into aquaculture – It’s hard economics.

There’s a strong demand for sea cucumbers in Asia where they’re prized as an aphrodisiac. Farmers here can now make up to $50 a month, about twice that of a regular fisherman. While this is still substantially below the average global wage, it’s brought dramatic improvements in the local quality of life. NGOs, including Alasdair’s, are now working on similar farming ventures in other coastal villages around Madagascar. Localised efforts can only go so far in countering the vast damage to ecosystems across the ocean.

But in the face of an increasingly urgent crisis that could still be a very long way.